William c



- (Modem W. O. NELSON.

DISH WASHING MACHINE. 7 No. 249,973. Patented Nov. 22,1881.

UNrrE o STATES PATENT Futon.

WILLIAM G. NELSON, OF SANTA ROSA, CALIFORNIA.

DISH-WASHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 249,973, dated November 22, 1881.

Application filed August 29, 1881. (Model.)

To all whom it may concern:

Be it known that I, WILLIAM G. NELSON, a citizen of the United States of America,residing at Santa Rosa,in the county of Sonoma and State of California, have invented certain new and useful Improvements in Dish-Washers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing, and to letters or figures of reference marked thereon, which forms a part of this specification.

My invention relates to dish-washing machines; and it consists in the construction and arrangement of its several'parts, as will be hereinafter fully described.

The accompanying drawing fully illustrates my invention.

A is the casing, the upper portion of which is open, as shown. It is provided with a false bottom, a, through suitable perforations in which are inserted the brushes a. One side of this false bottom is elongated and forms a guide, a or guard, by which the danger of the dishes slipping from the hand and falling from the washer is prevented.

B is the cover. It is curved, as shown,and acts to prevent the water from splashing out in the operation of the washer. It has arms I) placed upon opposite corners and set parallel with the sides of the washer, as shown. The arms are hinged to the casing on the inside at a point, I), slightly above its center, as shown, and by reason of their action upon these pivots the cover can be carried forward or backward, as desired. The cover and arms operate within the casing.

To the lower ends of the arms b is pivoted the hollow cylinder 0. It is provided at one one end with a crank, c, which projects through the casing and operates in'a semicircular slot, 0, in one end only of the casing, as shown. Through suitable perforations in the cylinder are placed the curved brush-rods d. They extend entirely through and project beyond its surface, as shown. They have brushes upon both ends, which wear against the brushes a in the false bottom a.

e is a circular disk placed upon the crankaxis, between an arm, I), and the casing, to

prevent water from escaping through the slot 0 in the operation of the machine.

f is a peg placed upon the cover to aid in its manipulation.

As the cylinderO has bearings upon thelower ends of the rods 1), which are pivoted to the sides of the casing A at b, as shown, and rigidly secured to the corners of the cover B, it will be seen that when the cover is turned forward or to the left the cylinder 0 will be raised from the brushes a, and when turned backward or to the right'will be pressed down upon them. The crank 0, operating in the semicircular slot 0, readily accommodates itself to the different altitudes of the cylinder.

In the operation of the washer, water is poured in until the casing is filled to withina short distance of the bottom of the slot 0. The cover B is then turned forward or to the left, which raises the cylinder 0 to its highest point from the false bottom a. The curved rods (1, then in perpendicular position, will, by their own weight, sink down until the brushes upon their lower ends rest upon the brushes (1. The rods (1 being curved, it will be seen that when the brush upon one end of any rod is traveling across the brushes a the curvature will be toward the forward or left of the washer, and that when the brush upon the other end of the same rod comes in contact with the brushes a by the revolution of the cylinder the curvature of the rod will be toward the back or right of the washer, as it was when the opposite brush became freed from contact with the brushes a, the friction between the brush on the rod (1 and brushes a will cause the curved brush-rod to twist around until the curvature is toward the front or left of the machine, as shown in the first instance, thus imparting a twist to the brushes when in contact with the dishes, which greatly aids in cleaning them. The articles to be cleansed are then introduced into the washer through the open space between the cover B and guide (L The cylinder is then putin motion by the crank c, and the articles will be carried along the space between the cylinder and false bottom by contact with the brushes to the opposite side of the machine. The cover is then moved backward or to the right, the cylinder being conthe washer completely cleansed. The cover is then moved forward or to the left and the operation repeated.

W hen small articles are to be cleaned a convenient number may be placed in the Washer together.

\Vhat I claim is- 1. In a dish-Washing machine, the combination of the cover B, provided with arms I) b, pivoted to the casing A at b, with the cylinder 0, having hearings on the lower ends of the arms I) b, and having placed through it curved brush-rods d, all arranged and operatin g as described.

WILLIAM 0. NE LSON.

Witnesses:

JOHN T. CAMPBELL, WM. W. PORTER. 

